We are planning on upgrading from 8.2 to 9.1. However, we have a number of forms with custom save actions using the WFFM module.
Although WFFM is technically deprecated with 9.1 it's been suggested that it would be possible to install the last supported version of the module into 9.1 with a view to migrate them over to Sitecore Forms.
Are there any consequences to doing this that we should consider?